Amos 4:6 says, And I also have given you cleanness of teeth in all your cities, and want of bread in all your places: yet have ye not returned unto me, saith the LORD.  Since God had removed His blessing due to the sins of Israel, they were now going hungry.  This does not mean that all sinners, those who do not acknowledge God, will go hungry in this world, but even if they prosper, they will one day suffer when God's ultimate judgment comes.  Even when God allowed Israel to suffer, they did not return to Him.  Verse seven says, And also I have withholden the rain from you, when there were yet three months to the harvest: and I caused it to rain upon one city, and caused it not to rain upon another city: one piece was rained upon, and the piece whereupon it rained not withered.  God's people should recognize that God is in control of the universe.  God can indeed withhold or send the rain when it is needed.  This does not mean that all natural disasters are caused by God though.  God may allow it, as He did with Job, without being the cause.  Verse eight states, So two or three cities wandered unto one city, to drink water; but they were not satisfied: yet have ye not returned unto me, saith the LORD.  God's chosen people, who were His in name only,  instead of returning to Him, went into other cities looking for water, but they were not satisfied.  If we are God's people in name only, we are never going to have our spiritual thirst satisfied, no matter where we look for that satisfaction.  Verse nine declares, I have smitten you with blasting and mildew: when your gardens and your vineyards and your fig trees and your olive trees increased, the palmerworm devoured them: yet have ye not returned unto me, saith the LORD.  The people of Israel should have been able to see what was happening and know that God was not happy with them.  If we do not honestly rely on God, then all the things that we depend on will ultimately fail us.  Even if we die rich in the eyes of the world, and we are not saved by faith in Christ, then we die spiritually destitute.  Verse ten says, I have sent among you the pestilence after the manner of Egypt: your young men have I slain with the sword, and have taken away your horses; and I have made the stink of your camps to come up unto your notrils: yet have ye not returned unto me, saith the LORD.  We can read this as God actually doing it, or as His taking away His protection or blessing.  I believe that at times God does indeed send pestilence to attempt to bring His people back to a true relationship with Him, but not all pestilence is a direct result of God's actions.  I believe this was especially true in the Old Testament.  Today, as followers of Christ, we have the Holy Spirit to keep us attuned to God.  Not all natural disasters, which would be a pestilence, are an act of punishment on the part of God.  Verse eleven says, I have overthrown some of you, as God overthrew Sodom and Gomorrah, and ye were as a firebrand plucked out of the burning: yet have ye not returned unto me, saith the LORD.  All of these bad things that were happening were done to bring those who professed to be God's people back to Him.  If we as God's people are suffering today because we have allowed sin back into our lives, it is to bring us back to God.  Verse twelve warns, Therefore thus will I do unto thee, O Israel: and because I will do this unto thee, prepare to meet thy God, O Israel.  Israel, the nation known to be God's people, were warned to be ready to meet their God.  One day, when Christ returns, all will meet God.  We, as followers of Christ, God's people today, should not need this warning, because we already know Him.  Verse thirteen states, For, lo, he that formeth the mountains, and createth the wind, and declareth unto man what is his thought, that maketh the morning darkness, and treadeth upon the high places of the earth, The LORD, The God of hosts, is his name.  There can be no doubt that there is but one God, the Creator and Sustainer of the universe, Who desires a personal relationship with every one.  Still, in all His power, God will never force a person into that personal relationship with Him.